Medicine

Bukhari :: Book 7 :: Volume 71 :: Hadith 646

Narrated 'Aisha:

The Prophet used to treat some of his wives by passing his right
hand over the place of ailment and used to say, "O Lord of the
people! Remove the difficulty and bring about healing as You are
the Healer. There is no healing but Your Healing, a healing that
will leave no ailment."